Frequency converter



FIG. 1 is a front, bottom, right perspective view of a frequencyconverter showing my new design;

FIG. 2 is a front, top, left perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines illustrating the unclaimed portions of the frequencyconverter form no part of the claimed design. Dot-dash broken linesdefining the boundaries of the claimed design form no part of theclaimed design.

CLAIM The ornamental design for a frequency converter, as shown anddescribed.